if (mtDropDown.isSupported()) {

		var ms = new mtDropDownSet(mtDropDown.direction.down, 0, 0, mtDropDown.reference.bottomLeft);

		var menu1 = ms.addMenu(document.getElementById("menu1"));
		menu1.addItem("- 图书馆简介","about.asp"); // send no URL if nothing should happen onclick
		menu1.addItem("- 阅览室介绍","Structure.asp");
		menu1.addItem("- 联系我们","Contact.asp");	
	
//第二菜单
		var menu2 = ms.addMenu(document.getElementById("menu2"));
		menu2.addItem("- 办证须知","xuzhi.asp"); // send no URL if nothing should happen onclick
		menu2.addItem("- 开馆时间","opentime.asp");
                menu2.addItem("- 借阅须知","jieyue.asp");
		menu2.addItem("- 楼层指引","floor1.asp");
		menu2.addItem("- 入馆须知","xuzhi_room.asp");	
		// menu : 3
		var menu3 = ms.addMenu(document.getElementById("menu3"));
		 menu3.addItem("- 新书推荐","book.asp");
		menu3.addItem("- 推荐目录","contents.asp?BigClassName=推荐目录");
		menu3.addItem("- 报刊索引","press.asp");	
		
		// menu : 4
		var menu4 = ms.addMenu(document.getElementById("menu4"));
		//menu4.addItem("- 企业荣誉", "Honor.asp");
		//menu4.addItem("- 企业资质", "Img.asp");
		
	// menu : 7
		var menu7 = ms.addMenu(document.getElementById("menu7"));
                 menu7.addItem("- 简介", "share.asp");
		 menu7.addItem("- 制度", "sharezd.asp");
		// menu : 6
		var menu6 = ms.addMenu(document.getElementById("menu6"));		
	menu6.addItem("- 本馆检索","http://www.hrlib.com.cn/ggjs/");
		menu6.addItem("- 北京市公共图书馆联合书目检索","http://www.bplisn.net.cn/BookSearch.aspx");
		mtDropDown.renderAll();
	}